"My Sausage Frittata with mushrooms is a totally satisfying 15 minute meal! It's loaded with mushrooms and topped with lots of mozzarella...."
INGREDIENTS
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1 tablespoon butter
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3 links sausages (removed from casing)
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1 medium onion (chopped)
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1 cup white mushrooms (chopped, or cremini )
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6 large eggs (beaten)
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salt and pepper (to taste)
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1 cup mozzarella cheese